The Economist talking nonsense about Uber
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Investors rationalise its valuation by assuming that in the long run it will be highly profitable, with a dominant share of a large market. In 2014 Bill Gurley, a well-known tech investor who was then an Uber director, estimated that the pool of consumer spending that it could try and capture might be over $1trn, with ride-hailing and ride-sharing replacing car ownership. Today many Silicon Valley types think that estimate is too conservative.
But a discounted cashflow model gives a sense of the leap of faith that Uber’s valuation requires. After adjusting for its net cash of $5bn and for its stake in Didi, worth $6bn, you have to believe that its sales will increase tenfold by 2026. Operating margins would have to rise to 25%, from about -80% today.
That is a huge stretch. Admittedly, Amazon and Alphabet, two of history’s most successful firms, both grew their sales at least that quickly in the decade after they reached Uber’s level, and Facebook is likely to as well. But over the same periods these firms’ operating margins show an total average rise of only one percentage point. Put simply, Uber finds it desperately hard to make money. It is not clear that it breaks even reliably across the group of cities where it has been active for longest."
DCF analysis is extremely fragile when convexity is involved. Its actually a very harmful tool for dealing with these sorts of investments. As Taleb says "Understanding is a poor substitute for convexity". One is WAY better off implementing a trailing stop (say "Exit the investment once it is down by 50%") rathern than to try to 'intelectualize' it by doing DCFs, or just looking around for reasons to sell (there are ALWAYS many reasons to sell)